Climate and monthly weather forecast
Great Mills, MD

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Weather in January

January, like December, in Great Mills, Maryland, is a wintry winter month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 41.7°F (5.4°C). In Great Mills, the month of January is known for its lowest average temperatures, reaching a high of 41.7°F (5.4°C) and a low of 31.5°F (-0.3°C). Weather in January »

Weather in February

February, the last month of the winter in Great Mills, is a frosty month, with an average temperature varying between 33.4°F (0.8°C) and 44.6°F (7°C). At the start of February, Great Mills's average high-temperature reaches a chilly 44.6°F (7°C), subtly different from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Great Mills, is a cool month, with an average temperature fluctuating between 51.4°F (10.8°C) and 39.7°F (4.3°C). As Great Mills enters March, the average high-temperature marginally increases from the a frosty 44.6°F (7°C) of February to a fresh 51.4°F (10.8°C). Weather in March »

Weather in April

April in Great Mills, Maryland, is a comfortable spring month, with an average temperature varying between 62.6°F (17°C) and 49.3°F (9.6°C). As March gives way to April, the average high-temperature displays an increase, moving from a fresh 51.4°F (10.8°C) to an enjoyable 62.6°F (17°C). Weather in April »

Weather in May

May, the last month of the spring in Great Mills, is a pleasant month, with an average temperature fluctuating between 71.6°F (22°C) and 59°F (15°C). An increase in the average high-temperature marks May, moving from April's comfortable 62.6°F (17°C) to an agreeable 71.6°F (22°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Great Mills, Maryland, with an average temperature ranging between max 79.9°F (26.6°C) and min 67.5°F (19.7°C). Great Mills's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's agreeable 71.6°F (22°C) to a moderately hot 79.9°F (26.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Great Mills, Maryland, with an average temperature varying between 72.1°F (22.3°C) and 84.7°F (29.3°C). Great Mills's July weather, with an average high temperature of 84.7°F (29.3°C) and an average low temperature of 72.1°F (22.3°C), tends to be the warmest of the year. Throughout July, the heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Great Mills, Maryland, with an average temperature varying between 83.1°F (28.4°C) and 71.2°F (21.8°C). The average high-temperature is a still warm 83.1°F (28.4°C) in August, hardly different from the 84.7°F (29.3°C) recorded in July. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Great Mills, Maryland, with an average temperature ranging between max 77.2°F (25.1°C) and min 65.8°F (18.8°C). September brings a slight decrease in the average high-temperature, shifting from a warm 83.1°F (28.4°C) in August to a still moderately hot 77.2°F (25.1°C). Weather in September »

Weather in October

October, like September, in Great Mills, Maryland, is another refreshing autumn month, with an average temperature ranging between max 66.7°F (19.3°C) and min 55.4°F (13°C). As October begins, there is a decrease in the average high-temperature, falling from a warm 77.2°F (25.1°C) in September to a comfortable 66.7°F (19.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Great Mills, Maryland, with an average temperature varying between 43.9°F (6.6°C) and 55.2°F (12.9°C). A change in temperatures is noted as October gives way to November, with average highs reducing from a refreshing 66.7°F (19.3°C) to a cool 55.2°F (12.9°C). Weather in November »

Weather in December

December, the first month of the winter in Great Mills, is still a chilly month, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 47.1°F (8.4°C). December signifies a gentle decline in Great Mills's average high-temperature, easing from a fresh 55.2°F (12.9°C) in November to a frosty 47.1°F (8.4°C). Weather in December »
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January, characterized by an average high temperature of 41.7°F (5.4°C) and a low temperature of 31.5°F (-0.3°C), is generally the coldest month.

What are the least humid months?

January, March and November, with an average relative humidity of 73%, are the least humid months.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 8.8 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain?

In Great Mills, during the entire year, the rain falls for 160.6 days and collects up to 34.49" (876mm) of precipitation.

When does it snow?

January through April, November and December are months with snowfall.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 3.5 days and accumulates 1.77" (45mm) of snow.

How many days does it snow?

Throughout the year, there are 9.6 snowfall days, and 5.28" (134mm) of snow is accumulated.

When is the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 5.1h of sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the most humid month?

The most humid month is May, with an average relative humidity of 79%.

When it does not snow?

May through October are months without snowfall.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

When are the longest days?

The month with the longest days in Great Mills is June, with an average of 14h and 48min of daylight.

What part of the year is the hottest?

Great Mills's July weather, marked by an average high temperature of 84.7°F (29.3°C) and an average low temperature of 72.1°F (22.3°C), is the warmest in the year.

What is the wettest month?

July is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.53" (115mm) of precipitation.

What month has the most sunshine?

With an average of 10.7h of sunshine, July has the most sunshine of the year.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

Average temperature
Great Mills, MD

Average temperature - Great Mills, MD

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (41.7°F).

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure
Great Mills, MD

Average pressure - Great Mills, MD

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Great Mills, MD

Average wind speed - Great Mills, MD

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity
Great Mills, MD

Average humidity - Great Mills, MD

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March and November (73%).

Average rainfall
Great Mills, MD

Average rainfall - Great Mills, MD

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days
Great Mills, MD

Average rainfall days - Great Mills, MD

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall
Great Mills, MD

Average snowfall - Great Mills, MD

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Great Mills, MD

Average snowfall days - Great Mills, MD

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Great Mills, MD

Average daylight / Average sunshine - Great Mills, MD

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days
Great Mills, MD

Average sunshine days - Great Mills, MD

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is August (10.7 days).

Average UV index
Great Mills, MD

Average UV index - Great Mills, MD

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average visibility
Great Mills, MD

Average visibility - Great Mills, MD

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Great Mills, Maryland, USA

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